Rough pulper.



J. D. TOMPKINS.

ROUGH PULPER. APPLICATION FILED irNE 2, 1909.

969,998. Patented Sept. 13,1910.

2 SHEETS-SHEET 1.

' J. D. TOMPKINS.

ROUGH PULPBR. APPLICATION FILED JUNE 2, IQ OQ.

Patented Sept. 13, 1910.

2 innate-$112111 2.

' 351 f at 010442 ami-M09990 fi M 8 711 M strength as the original paper stock, and the same 13 true of the paper made therefrom.

arrangement of the outlet from the apparavention in the accompanyingdrawings, in

To all whom it may concern:

JOHN D. TOMPKINS, 0F VALATIE, NEW YORK.

ROUGH PULPER.

eooeas.

Specification of Letters Patent.

Patented Sept. 13, 1910.

' Application filed June 2, 1909; Serial No. 499,792.

Be it. known that I, JOHN D. Tour- Iuxs. of Valatic, in the countyof Columbia and in the State ofNeW York, have invented a certain new and useful Improvement in Rough Pulpers. and do hereby declare that the following is. a, full, clear, and exact description thereof.

My invention relates especially to an im prominent in an apparatus for reducing old paper-stock, such as stock made from old newspapers and other kinds of. paper in such a manner as to produce-first, a st rongmr 'ia per, and second, a paper of high quality at lowe cost than has hitherto been possible.

My apparatusis of such a character that it; is adapted to loosen the fibers effectively without destroying the same or breaking the individual fibers. By the use of: my apparatus. therefore, the resulting renovated paper stock is of practically the same My apparatus designed, furthermore. in such aunanner asto avoid any liabilit v of the same. becoming clogged or damaged by the accumulation of strings. Furthermore, I arrange the'parts in such a manner that they are adjustableso asto produce a stock of any desired fineness. and also to take up for any Wear that might occur to the parts.

-Another featureof my invention is the tus in such anianner as to prevent the same from becoming clogged.

I have shown one embodhnent of my in whicl1 A Figure 1 is a longitudinal vertical cross scctionof the same partly in elevation; Fig. 2 is a transverse vertical sect-ion taken'on the line 22 of Fig. 1;Fig 3' is an enlargement of the outlet in section; and Fig. 4 is an elevational view of the same.

In the drawings, 1 is a} stationary drum supported upon uprights 2 the drum bein frusto-conical in sha e. The smaller, on of the drum 1 is provided with a detachable inlet hopper 3, above which there is located a feed pipe 4 for the paper stock. The larger end of the drum 1 is provided with a removable cover 5, bolted by means of bolts 6 to the drum. At the larger end the drum 1 is also provided with an outlet 7, to which an outlet ipe 8 is connected. -The outlet 7 is adapted to be closed by a grating 9 havf inga plurality of diagonally arranged bars 10. therein. The grating 9 is sup orted upon a block 11. A shaft 12 passes tlirough and is screw-threaded to the outletpipe 8 by means of a screw-thread 13. Upon the end of the shaft there is situated an operating handle 14 for operating the same. The inner end of the. shaft projectsinto the interlor of the block 11, and is provided at this point with a head 15. By rotating the shaft 12 from the outside of the outlet 1' e 8. it will be seen that the grating 9 can e adjusted toward and away from the interior of the drum. A rotary-shaft 16 passes into the interior of the drum 1, and is supported at the exterior thereof by two uprights 17. The shaft 16 atone end carries a driving pulley 18. The shaft 10 upon the interior of the drum has attached thereto a conical core 19, in the outer face of which there are secured a number of arms 20. Each of the arms 20 is pointed and approaches closely interior of the. drum 1 carries a number of longitudinally disposed knives 21, supportcd bet-ween woodenstrips 22. The, knives.

21 are adapted to cooperate with the arms 20 in disintegrating the paper stock. The arms 20 are arranged spirally upon the core 11 so as to more effectively engage the body' outside of the drum, w th which a bifur-- cated arm 24, situated upon bell crank lever 25 is adapted to engage. .The bell crank lever 25 *is pivoted upon one-of the; standards 17, and the other arm thereof 26.

.to the inner periphery of the drum 1. The

carries a bolt 27, which is adapted to move within a slot 28 in the standard 17.

In the operation of the dqv 1ce,'the paper stock, having been submitted to a thorough preliminary dusting, cleaning and soaking treatment, is fed into the drum 1 from the pipe 4 through the hopper 3 vvith a quane tity of Water. Upon the shaft 16 being =rotated, the arms 20 disintegrate the stock' and loosen the fibers thereof from-one another. The parts are arranged, however,

ion

in such a manner asto avoid the breaking of the individual fibers, as the comminu tion is accomplished without resorting to any grinding of tlie stock. The arms 20 be= ing ocated in a spiral direction upon the 50 being relatively movable.

core 19, the stock is gradually worked from the smaller end to the larger end of the drum 1. When the stock reaches the larger end. of the drum 1 and has been sufficiently comminuted, the same passes through the grating 9 and out through the outlet pipe 8, tobe further refined and treated, if desired.

Because of the location of the bars 10 of the grating D in a diagonal direction, no lumps of stock can lodge upon the grating for any appreciable period of time, as the rotary arms cooperating with the bars 10, Would tend either to force the lumps through "the grating t), or further comminute them.

Iii'order to effectively accomplish this result,fithe grating 9 is made adjustable to and from the ends of the arms 20, so that the grating can be adjusted to the most eifeetive position; The distance between the ends of the arms 20 and the knives 21 can be adjust-edr'by moving the shaft l6 longitudinally. Thisis accomplished by loosening the bolt"27 ';'and moving thebifurcated lever 24' backward or forxvard, as desired, and then again tightening the bolt 27 to maintain the parts in their adjusted position.

""lncase, it is desired to clean the apparatus, the hopper 3, the grating 9, or the-removable headf5j can detached. Any strings that are accumulated may be removed bycu'tting or i n aiiyo'ther suitable manner. v

Becajlsenofthe fact'that the interior of the drum is" provided with a number of '"longitudinalknives for cooperation with the ni-eomninationj longitudinal knives therein, and.- a plurality endsi-ofQ-t-lie 13111 20, anaccm'nulation of ann dt'possibly'stop ti'ie'rotation of aft- 16, nor can it in any tray succeed iHbendingLor breaking the arms 20, as

i would be the case were'th'egi 'iterior'of the driin 'a'lso-provided vith ar 'n sr Vi hile "I have described my invention above in detai'l, I wish it to be understood 7, that many changes may be made therein 1 "Without "departing from the spirit 5 of my devi' of a drum,

of arm'sin the "drum,

said. knives and arms 2. In a device. ofthe character, described,

longitudinal knives the-rein, a rotary shaft therein and a plurality of arms upon the shaft.

3. In a device ofthe character described, the 0 0 bination of a conical drum, a plurality of longitudinal knives therein, and a plurality of arms in the drum, said, knives and arzns'being relatively movable.

4. In a device of'the character described, the con'ibination of a conical drum, a pinrality of longitudinal knives therein, a roe tary' shaft thereil'i and agplurality of arms upon the shaft. v

5. In a device of the character described, the combination ofa. conical drum, :1 plnrality of'longit'udinal knives therein, and a plurality of arms inthe drum, said-knives and arms being relatively movable and adofthe character destiiibed,

ap'lulfality of Witnesses:

same, means for eansing the drum and arms to moverela mve to one another, and means for adjusting the arms-longitudinally in upon the shaft longitudinally adjustable in said drum to move them toward or. away from the Wall of the drnmi 10. In a device of the character described,

taryarms therein, an outlet-on the side of the drum, and a gratin-ghaving.diagonal barsover saidopening, said grating being adjus -able toward ajndaavay from the arms.

In testin'ionythat Iiclaim the foregoing I have herenntoiset rhyhand i JOHN D..- TOMLPKINS.

a; plurality of ink-Melina.

8. In a device of the character described,-

the combination 01' a drum, one or more ro-- 

